Insulator-bracket.



c. L. PEIRGB, Jn. INSULATOR BRACKET.

PLIUVATION FILED 00T. 26, 1910.

Patemd @nt 1?, mi.a

57'/ i] JM -4 ments in l'nseleter-Brackets, ot which thecured, as' by being riveted thereto.

pecieaton of Letters Potent.

littl. T7eten an filed @meer ze, 1910, semi no. aegon).

.ro all 'who/m it Be it known r. limiten, Jr., a resident ot 1 Y county oic Allegheny, and @tete oft' Veni o/lrania, here invented eert-ein new sind usri'ul improve inetel, such as steel.

The more modern insulator brackets usually comprise e back piece generally in the form of e channel iron. to which nachV piece the insulator supporting' units are se- These back pieces ere very narrow and do not form aJ wide base and will not, therefore, slitticiently protect the insulator' units against Side swing or displacement by the tension of wires supported thereon. lnrthermore.y these back pieces are usually of just sutli cient width to accommodate the supporting units so that the bolt holes .for securing the strip to it Support must be either above or below the point of strain oi the wires on the insulators, this Otten' resulting in intro ducing lever' etlect which will tend to bnckle. bend or twist the bock piece.

One object of my invention is to substitute :i back support comprising' two 1nc1n bereI instead oi a. single member and witlr out materially increasing the wright ot' the bracket.

Another object is to construct and arrange 'the members oi the baci: support so that insulator supporting units can be rigidly secured between them and locked in various angular positions with reference to the members.

Another object is to so .torni and coni struct the members ot the back support that bolt holes can be provided therethrough to be in line with the direction ot strain on the bracket to thereby inevent buckling. twist or other dietortion of the back member.

My invention is clearly diselosed in the following specification and illustrated on.

the bracket taken on plane "J-JQ, Fig. 1. Fig.

3 is e perspective view showingr amodified Aerrengement, Fig. 4 is a perspective view showin g enothr the baci( support1 :in Y tied arrangement ot ein tween the boel; support zirryin g uni t,

Referring to l an( port comprises two ingle itl and il whose limbs 'l2 and 1.3 ere nit. right angles c position be the insulator with each other, the vertical limbs 1Q being spaced apart to form longitudinal channel 1.4 `for receivingI the. insulator snp portingr units ll. Each insulator supporting unit may be bent np into L-shape from a. piece of bnr or from i` piece ot channel iron 15, es shown. llhe ln'rrizontel part l5 of each unit is given a quarter twistto lin-ing; the end 15c into vertical position and parallel with the other part 1151, whose, end is provided with a spiral spring 16 forming the thread AFor receiving); the insulator rthe ends 15* oit the horizontal part 1.5 ot the units nre inserted between the vertical flanges 19. of the back support members and 1l and are secured in such position in'eternbiy by rivets 1'? extending through rivet holes in the flanges 12 and the ends 15e respectively. ln order to prevent vertical swing of the units small luge 1S ere formed in thc Iianpjes 12 by :my well-known punchingv process. these lugs extending,r intotbc channel il, one above and on'e below each side ot' the ends 15C oi the units, and these lugrs being also in o vertical plaine to the rear of the plane of the rivets 17 or. as

shown. in :i vertical plano in front ot lthe 90 rivet plone. AThese lugs by beinglinterposed in the path of the upper and lower faces ot the ends 15e will form locking abutments to prevent rotational displacement of the nnits when the bracket is in service and en- 95 able the units to bear heavy wires -or cables. Instead of using rivets bolts could be need, so that the bracket could be assembled just before being;n put into service. The horizon tal flanges 13 of the ongle members 10 and 100 11. :1re punched to leave bolt holes 19. such bolt holes appearing; `preferably adjacent the inner ends of the insulator units, so that the bolts which Secure the bracket to a supe comparatively wide and substantial en- 1.1.0

modiport will be in the line ot strain on the 15 is intended to 50 the parts 15h in place, only a single rivet` or bolt being The form of bracket just described isv intended to be mounted in vertical position to a support. In Fig. 3 the bracket shown be mounted in horizontal position, and for this arrangement the insulator supporting units are not given a quarter twist but are merely bent into L-form, the horizontal part h being inserted and riveted between the forwardly extending flanges 1Q of the supporting base and the other members of the units extending upwardly to receive the insulators. ln this form also the bolt holes are placed to be in direct line of pull or weight on the insulators, and where the insulator supporting units are subjected to side pull or strain it is also desirable to provide lugs 1S in the Asame manner as in Figs. l and Q.

in Figs. t and 5 are shown other adaptations of my invention, particularly to produce an adjustable bracket. The two supporting members 2l and Q2 are similar and of L-shape to form the base parts 2lb and the forwardly extending parts Qlf between which the insulator' bracket U is held, the parts 2lb having bolt holes 23( The brackets are also of L-form and bent up of channel iron, the horizontal parts l5 beingin- 40 sei-ted between the parts 2l? of the upper and lower supporting members, and a rivet may pass through these parts and through the unit, or a bolt Q4 can be used. in Fig. i

the insulator extends forwardly with the part loll perpendicular to the supporting wall, and to hold the insulator in this position and to prevent lateral and rotational displacement thereof lugs 1S are provided in the parts 2li to engage at either side of of the unit and in a plane in front ofthe bolt plane. The bolt` therefore, together with the lugs. will absolutely prevent any lateral displacementv of the insu-- lator supporting unit with reference to its support.

Qn account of supporting wall conditions it 1s sometimes desirable that the support- Iing unit U be adapted to be adjusted latl orally with reference to its supporting base,- for example to theV position shown in Fig.

5 where the supporting unit is parallel with the supporting base and with the support ing wall to which the base may be secured. In order to also lock theasupporting unit when in its adjusted position provide .secured to a support and having abutment lugs 18 in the upper and lower members '2l and Q2 and in a plane to the rear of the plane ofthe bolt 2l. ll'hcn the unit is swung to thc position shown in Fig. 5 at right angles with the position shown in Fig. l thelugs 1S engage the front edges of the unit and the rear lugs 1S engage the rear edges of the unit when the bolt Q4: is drawn tight. and the unit A is securely clamped against lateral or rotational displacement. v j A Instead of having the base constructed to support only a. single unit, as shown in Figs. 4 and the base members could of course be lengthencd to support a number of units. 'ln the forms of Figs. 4t -and 5,' as in the forms shown in Figs. l to the base is comparatirel).v wide and the insulator supporting units are rigidly supported, and being securely locked against any displace ment with relation to the base the insulators are particularly adaptable for supporting heavy loads. such as heavy feed wires.

nstead of providing rivets and abutment lugs for locking the insulator supporting units to the members, the supporting members and units can be welded together, as for instance, by some electric welding process.

I do not desire to be limited to the precise forms and constructions which l have shown. as other forms and modifications are of course possible which would still come within the scope of my invention, and l therefore claim the following:

l. In an insulator bracket, the combination of two supporting` members having walls arranged adjacent each other to form achannel, an insulator' supporting unit having an end extending into said channel, a bolt or rivet passing through said adjacent walls and said end of the unit to secure said unit and said walls together. and lugs formed on said walls to engage with said end of the unit to lock said unit against swinging, said supporting'members having bolt holes whereby they may be secured to a support.

2. In an insulator bracket, the combination of two angle members having bolt holes in one wall whereby said members may be theirA other walls adjacent eachother to form a channeh an insulator supporting unit having one end extending into said channel and riveted to the adjacent walls of the supporting members. and lugs formed in said walls to extend into said channel at either side of said7 unit end to lock said unit against rotational displacement.

3. ln an insulator bracket, the combination of angle members having bolt holes in one wall whereby they may be secured to a support vand having their other walls adjacent each other to form a channel, an insulator unit having an end extending into said channel, a bolt or rivet passing through said adjacent vWalls and the unit end extending between said Walls to secure the unit to said members, and lugs punched out of said adjacent Walls to extend into said channel and to engage with said end of the unit in a plane away from-the plane of the bolt or rivet Wherebyto lock said unit against rotational displacement.

Il. In an insulator bracket, the combination of tivo angle members'arranged With Walls thereof adjacent each otherto form a channel and having the other walls provided With bolt holes, said adjacent walls having holes in the plane of said bolt holes for receiving a bolt or rivet, an insulator supporting unit having an end adapted to extend into said channel, said end having a hole for receiving a bolt or rivet passed through the registering holes of said adjacent Walls whereby said unit may be secured to the supporting members, and lugs punched from the adjacent Walls to extend into said channel to engage with the unit end in the plane displaced from' the plane of the bolt or rivet, whereby7 said unit will be locked against rotational displacement.

5. In an insulator bracket, the combination of two angle. plates having base Walls provided with bolt holes and having their other Walls arranged adjacent to and parallel with each other to form a receivingI channel, an insulator supporting unit having one end extending into said channel, a bolt or rivet passing through said adjacent Walls of the angle plates and the unit end between them to lock the plates together and the unit thereto, and projections punched out from said adjacent Walls to extend into Asaid channel to lock said unit against rotational displacement with vreference to the plates, said projections being spaced to engage Withand vwith each other to form a channel, said adj-a-` cent -Walls each having a bolt openiiig, an insulator unit having an end extending into said channel between said adjacent walls and having a bolt opening for registering with said boltJ holes in said Walls, a bolt pass- 'ing through said. .(fegistering holes to hold said adjacent Walls vtogether and to pivot said unitthereingfand projections or lugs punched from said `adjacent Walls to extend into said channel, said projections o1'y lugs .being in position 'to lock said unit against rotational displacement after adjustment to various angular positions with reference to said angle members.

7. In an insulator bracket, the combinzh tion of two angle plates having Walls arranged adjacent each other to form a channel, an insulator supporting unit having an end extending into said channel, and means for securing said unit rigidly to said adjacent Walls to vprevent displacement thereof.

8. In an insulator bracket, the combination of two angle plates having 'walls arranged adjacent each other and parallel to form a channel, an insulator support-ing unit having' an end extending into said channel and parallel with said walls, and common means for securing said angle plates together and to said unit to form a ri 'd' structure.

In Witness wher-eo I hereunto'subscribe my naine this v19th day of October, A. D.,

CHARLES L. PEIROE, JR. Witnesses: y f CARL SAYLns,

A. R. Rorrznit. 

